CVE-2024-26602

low-risk
Published 2024-02-26

In the Linux kernel, the following vulnerability has been resolved: sched/membarrier: reduce the ability to hammer on sys_membarrier On some systems, sys_membarrier can be very expensive, causing overall slowdowns for everything. So put a lock on the path in order to serialize the accesses to prevent the ability for this to be called at too high of a frequency and saturate the machine.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (18)

Patch https://git.kernel.org/stable/c/2441a64070b85c14eecc3728cc87e883f953f265
Patch https://git.kernel.org/stable/c/24ec7504a08a67247fbe798d1de995208a8c128a
Patch https://git.kernel.org/stable/c/3cd139875e9a7688b3fc715264032620812a5fa3
Patch https://git.kernel.org/stable/c/50fb4e17df319bb33be6f14e2a856950c1577dee
Patch https://git.kernel.org/stable/c/944d5fe50f3f03daacfea16300e656a1691c4a23
Patch https://git.kernel.org/stable/c/b6a2a9cbb67545c825ec95f06adb7ff300a2ad71
Patch https://git.kernel.org/stable/c/c5b2063c65d05e79fad8029324581d86cfba7eea
Patch https://git.kernel.org/stable/c/db896bbe4a9c67cee377e5f6a743350d3ae4acf6
Patch https://git.kernel.org/stable/c/2441a64070b85c14eecc3728cc87e883f953f265
Patch https://git.kernel.org/stable/c/24ec7504a08a67247fbe798d1de995208a8c128a
Patch https://git.kernel.org/stable/c/3cd139875e9a7688b3fc715264032620812a5fa3
Patch https://git.kernel.org/stable/c/50fb4e17df319bb33be6f14e2a856950c1577dee
Patch https://git.kernel.org/stable/c/944d5fe50f3f03daacfea16300e656a1691c4a23
Patch https://git.kernel.org/stable/c/b6a2a9cbb67545c825ec95f06adb7ff300a2ad71
Patch https://git.kernel.org/stable/c/c5b2063c65d05e79fad8029324581d86cfba7eea
Patch https://git.kernel.org/stable/c/db896bbe4a9c67cee377e5f6a743350d3ae4acf6
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal